Security record · archived quarter
TMDX
TransMedics Group, Inc. · Healthcare · Medical - Devices
110Tracked holders
-2Δ holders
27.24MShares held
$2.71BReported value
+6New positions
−9Exits
Momentum inputs (comparable managers):
holder breadth -1.8% ·
share flow +1.1% ·
net new positions -2.7%
· formula
Concentrated accumulation: rising shares among fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 1 | 0 | 374 | $29,408 | n/a | −1 |
| Q2 2026 | 103 | -3 | 25.85M | $1.72B | +11 | −15 |
| Q1 2026 | 110 | -2 | 27.24M | $2.71B | +6 | −9 |
| Q4 2025 | 113 | -2 | 29.10M | $3.52B | +1 | −2 |
| Q3 2025 | 21 | +2 | 20.81M | $2.34B | +2 | −1 |
| Q2 2025 | 17 | +3 | 18.14M | $2.43B | +3 | n/a |
| Q1 2025 | 11 | -1 | 3.86M | $259.47M | +2 | −3 |
| Q4 2024 | 12 | +2 | 3.62M | $225.65M | +3 | −1 |
| Q3 2024 | 9 | -4 | 2.19M | $344.12M | n/a | −4 |
| Q2 2024 | 13 | n/a | 2.46M | $370.15M | n/a | n/a |
Who holds it · Q1 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 5.29M | -1.9% | $526.21M | 0.0% | ▼ Trim | 4 | SEC ↗ ×18 |
| 2 | Fidelity (FMR) ✦ | 5.10M | +0.4% | $506.62M | 0.0% | ▲ Add | 4 | SEC ↗ ×7 |
| 3 | Vanguard Capital Management Llc | 1.48M | n/a | $146.94M | 0.0% | n/c | 1 | SEC ↗ |
| 4 | State Street Global Advisors ✦ (passive) | 1.32M | +3.5% | $131.17M | 0.0% | ▲ Add | 6 | SEC ↗ ×2 |
| 5 | Invesco Ltd. | 1.04M | +51.6% | $103.18M | 0.0% | ▲ Add | 2 | SEC ↗ ×7 |
| 6 | UBS AM, a distinct business unit of… | 939.52K | -5.8% | $93.40M | 0.0% | ▼ Trim | 2 | SEC ↗ ×8 |
| 7 | Nomura Asset Management… | 885.84K | +6.4% | $88.06M | 0.2% | ▲ Add | 2 | SEC ↗ |
| 8 | Goldman Sachs Group ✦ | 866.28K | -10.3% | $86.12M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 9 | Geode Capital Management ✦ (passive) | 839.15K | +2.8% | $83.44M | 0.0% | ▲ Add | 8 | SEC ↗ ×2 |
| 10 | Morgan Stanley ✦ | 694.15K | +4.0% | $69.01M | 0.0% | ▲ Add | 3 | SEC ↗ ×8 |
| 11 | UBS Group AG | 580.79K | -11.9% | $57.74M | 0.0% | ▼ Trim | 2 | SEC ↗ ×5 |
| 12 | Dimensional Fund Advisors Lp | 516.68K | +5.5% | $51.35M | 0.0% | ▲ Add | 2 | SEC ↗ ×5 |
| 13 | Wellington Management ✦ | 486.47K | +12.3% | $48.36M | 0.0% | ▲ Add | 8 | SEC ↗ ×5 |
| 14 | Capital World Investors ✦ | 374.18K | +64.5% | $37.20M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 15 | Citigroup Inc | 357.38K | +396.1% | $35.53M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 16 | T. Rowe Price ✦ | 346.68K | -39.2% | $34.46M | 0.0% | ▼ Trim | 8 | SEC ↗ ×2 |
| 17 | Northern Trust Corp | 338.16K | -0.3% | $33.62M | 0.0% | ▼ Trim | 2 | SEC ↗ ×7 |
| 18 | Two Sigma Investments ✦ | 325.14K | -25.4% | $32.32M | 0.0% | ▼ Trim | 6 | SEC ↗ ×2 |
| 19 | Charles Schwab Investment… | 318.93K | -1.3% | $31.70M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 20 | Millennium Management ✦ | 306.08K | +105.4% | $30.43M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 21 | Baillie Gifford ✦ | 305.19K | -3.6% | $30.34M | 0.0% | ▼ Trim | 8 | SEC ↗ ×4 |
| 22 | Bank Of America Corp /De/ | 295.18K | +5.7% | $29.34M | 0.0% | ▲ Add | 2 | SEC ↗ ×5 |
| 23 | JPMorgan Chase ✦ | 308.34K | -17.8% | $29.08M | 0.0% | ▼ Trim | 3 | SEC ↗ ×8 |
| 24 | Wells Fargo & Company/Mn | 273.80K | +5.9% | $27.22M | 0.0% | ▲ Add | 2 | SEC ↗ ×4 |
| 25 | Principal Financial Group Inc | 231.43K | +19.4% | $23.01M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 26 | Bank of New York Mellon Corp | 211.37K | -42.7% | $21.01M | 0.0% | ▼ Trim | 2 | SEC ↗ ×10 |
| 27 | Deutsche Bank Ag\ | 195.43K | +18.8% | $19.43M | 0.0% | ▲ Add | 2 | SEC ↗ ×4 |
| 28 | Barclays Plc | 190.58K | -4.6% | $18.95M | 0.0% | ▼ Trim | 2 | SEC ↗ ×4 |
| 29 | Blair William & Co/Il | 174.02K | +28.1% | $17.30M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 30 | Man Group plc | 158.41K | +65.6% | $15.75M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 31 | Bnp Paribas Financial Markets | 144.53K | -31.0% | $14.37M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 32 | Susquehanna International Group, Llp | 133.88K | New | $13.31M | 0.0% | New | 1 | SEC ↗ |
| 33 | Envestnet Asset Management Inc | 116.55K | +169.9% | $11.59M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 34 | Raymond James Financial Inc | 115.03K | +2.2% | $11.14M | 0.0% | ▲ Add | 2 | SEC ↗ ×4 |
| 35 | Ameriprise Financial Inc | 104.71K | -15.8% | $10.41M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 36 | Rhumbline Advisers | 89.82K | +2.0% | $8.93M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 37 | Credit Agricole S A | 87.39K | +0.2% | $8.69M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 38 | Legal & General Group Plc | 78.75K | -8.3% | $7.83M | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 39 | Nuveen, LLC | 78.42K | +4.3% | $7.80M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 40 | Ensign Peak Advisors, Inc | 75.57K | -6.2% | $7.51M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 41 | Janus Henderson Group Plc | 73.49K | +2.1% | $7.31M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 42 | Sei Investments Co | 69.63K | +25.9% | $6.92M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 43 | Bank Of Montreal /Can/ | 69.37K | -44.1% | $6.90M | 0.0% | ▼ Trim | 2 | SEC ↗ ×5 |
| 44 | Lazard Asset Management Llc | 64.79K | +26.0% | $6.44M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 45 | Swiss National Bank | 64.20K | +0.5% | $6.38M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 46 | American Century Companies Inc | 62.59K | +302.6% | $6.22M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 47 | Prudential Financial Inc | 61.63K | +7.9% | $6.13M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 48 | Citadel Advisors ✦ | 61.60K | -57.0% | $6.12M | 0.0% | ▼ Trim | 6 | SEC ↗ ×2 |
| 49 | First Trust Advisors Lp | 53.89K | +111.5% | $5.36M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 50 | Alliancebernstein L.P. | 42.76K | +1.5% | $5.20M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 51 | Federated Hermes, Inc. | 51.39K | +8.6% | $5.11M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 52 | Universal- Beteiligungs- und… | 47.27K | -48.9% | $4.70M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 53 | Tudor Investment Corp Et Al | 40.22K | New | $4.00M | 0.0% | New | 1 | SEC ↗ |
| 54 | LPL Financial LLC | 39.90K | +27.6% | $3.97M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 55 | Nordea Investment Management Ab | 38.83K | +21.4% | $3.78M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 56 | California State Teachers… | 37.84K | +22.8% | $3.76M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 57 | Gotham Asset Management ✦ | 37.82K | -7.5% | $3.76M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 58 | Hrt Financial Lp | 33.10K | New | $3.29M | 0.0% | New | 1 | SEC ↗ |
| 59 | Mitsubishi UFJ Asset Management… | 32.91K | 0.0% | $3.27M | 0.0% | Held | 2 | SEC ↗ |
| 60 | State Of Wisconsin Investment Board | 30.62K | -4.2% | $3.04M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 61 | IMC-Chicago, LLC | 27.69K | New | $2.75M | 0.0% | New | 1 | SEC ↗ |
| 62 | Royal Bank Of Canada | 26.94K | -57.1% | $2.68M | 0.0% | ▼ Trim | 2 | SEC ↗ ×7 |
| 63 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 25.90K | -13.2% | $2.57M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 64 | Baird Financial Group, Inc. | 21.20K | +52.8% | $2.11M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 65 | Fifth Third Bancorp | 20.80K | +4638.5% | $2.07M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 66 | Creative Planning | 20.64K | -4.6% | $2.05M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 67 | Commonwealth Equity Services, Llc | 20.13K | -10.5% | $2.00M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 68 | New York State Common Retirement… | 18.64K | 0.0% | $1.85M | 0.0% | Held | 2 | SEC ↗ |
| 69 | Cetera Investment Advisers | 17.07K | +58.5% | $1.70M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 70 | Marshall Wace ✦ | 15.65K | -91.8% | $1.56M | 0.0% | ▼ Trim | 5 | SEC ↗ ×2 |
| 71 | Franklin Resources Inc | 15.26K | -3.3% | $1.52M | 0.0% | ▼ Trim | 2 | SEC ↗ ×5 |
| 72 | Manufacturers Life Insurance… | 15.23K | -2.9% | $1.51M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 73 | Russell Investments Group, Ltd. | 15.12K | +120.1% | $1.50M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 74 | Zurcher Kantonalbank (Zurich… | 13.10K | -19.4% | $1.30M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 75 | Voya Investment Management Llc | 12.59K | +8.0% | $1.25M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 76 | HighTower Advisors, LLC | 12.52K | -23.7% | $1.24M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 77 | Victory Capital Management Inc | 8.96K | -67.9% | $890,813 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 78 | Mml Investors Services, Llc | 8.74K | -26.7% | $869,241 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 79 | Corient Private Wealth LP | 8.64K | +40.1% | $857,711 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 80 | Canada Pension Plan Investment Board | 8.50K | -80.9% | $844,985 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 81 | State Board Of Administration Of… | 8.22K | 0.0% | $816,852 | 0.0% | Held | 2 | SEC ↗ |
| 82 | Quantinno Capital Management LP | 8.06K | +197.9% | $801,145 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 83 | AQR Capital Management ✦ | 7.78K | +61.8% | $773,310 | 0.0% | ▲ Add | 4 | SEC ↗ ×6 |
| 84 | Stifel Financial Corp | 7.57K | -1.0% | $752,139 | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 85 | Squarepoint Ops LLC | 7.27K | -93.4% | $723,108 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 86 | Osaic Holdings, Inc. | 6.99K | +1.7% | $694,607 | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 87 | Captrust Financial Advisors | 6.97K | +314.8% | $692,769 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 88 | Amundi | 6.90K | +31.2% | $685,631 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 89 | Allspring Global Investments… | 6.46K | +11.2% | $649,086 | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 90 | Group One Trading Llc | 6.34K | +51.2% | $629,862 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 91 | Bank Julius Baer & Co. Ltd, Zurich | 5.71K | -0.9% | $567,725 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 92 | ProShare Advisors LLC | 5.41K | -19.4% | $537,312 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 93 | Pictet Asset Management Holding SA | 5.27K | +8.4% | $523,493 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 94 | Financial Engines Advisors L.L.C. | 4.41K | +1.0% | $437,901 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 95 | Pnc Financial Services Group, Inc. | 3.65K | +0.2% | $363,244 | 0.0% | ▲ Add | 2 | SEC ↗ ×5 |
| 96 | Massachusetts Financial Services Co… | 3.23K | -2.5% | $321,293 | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 97 | Jones Financial Companies Lllp | 3.21K | +34.6% | $318,149 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 98 | Neuberger Berman Group LLC | 3.16K | +17.3% | $313,738 | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 99 | Truist Financial Corp | 2.51K | +1.4% | $249,718 | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 100 | D. E. Shaw & Co. ✦ | 2.48K | New | $246,636 | 0.0% | New | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| Susquehanna International… | $13.31M | 0.0% |
| Tudor Investment Corp Et Al | $4.00M | 0.0% |
| Hrt Financial Lp | $3.29M | 0.0% |
| IMC-Chicago, LLC | $2.75M | 0.0% |
| D. E. Shaw & Co. | $246,636 | 0.0% |
Exited
| Norges Bank | $3.72M | was 0.0% |
| Renaissance Technologies | $1.25M | was 0.0% |
| Mariner, LLC | $1.10M | was 0.0% |
| Capstone Investment Advisors… | $358,016 | was 0.0% |
| Wealth Enhancement Advisory… | $331,940 | was 0.0% |
| Mackenzie Financial Corp | $253,825 | was 0.0% |
| Walleye Trading LLC | $145,980 | was 0.0% |
| Danske Bank A/S | $12,165 | was 0.0% |
| Optiver Holding B.V. | $6,934 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 412 holders, 36.17M shares, $3.51B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q1 2026 ·
Methodology ·
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